Otocinclus Catfish

Question
Hey, I'm looking for a cleanup crew for a 75 gallon small fish tropical tank. I've heard that Otocinclus Catfish stay small and are great cleaners, but I'm not sure how many to get. I'm thinking 10? Does that sound like too many, too little, or just right?

Answer
Hello Sam:

These fish would be a great choice and I think that 10 would be a good number for your aquarium.  I have heard the suggestion "about one Otto per 5 gallons of aquarium" so you could even add a few more down the road if the algae growth appears to be getting out of hand.

-Brian.